Sewage-discharge system.



T. FERGUSON.

SEWAGE DISCHARGE SYSTEM. APPLICATION FILED SEPT.2.'1908.

937,784; v Patented0ct.26,1909f 3 BEEETS-SHEET 1.

5] 00, Wfoz T. FERGUSON. SEWAGE DISCHARGE SYSTEM.

APPLICATION FILED SEPT.Z.19OB.

Patented Oct. 26, 1909. a SHEETS-@HEET 2v T. FERGUSON;

SEWAGE DISCHARGE SYSTEM.

APPLICATION FILED SEPT. 2, 1908- I 937,734 Patented Oct-26,1809

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WTTED PATEN Q EFTQF;

THDMAS rnaooson, or new YORK, N. Y.. assronoe TO THE mnrcn MACHINE COMPANY, or an iv roan. n. *2.

SEUAGE-DISCHARGE SYSTEM. i

Specification of Letters Patent Patented et. 26, 19499.

Application filed September 2, 1908. Serial HWSlfiOG.

T 0 all whom it may concern:

, Be it knownthat 1, THOMAS FERGUSON, a citizen of the United States, residing at New York, in the county of New York, State of New York, have made a certain new and useful Invention in Sewage-Discharge Systems, of which. the following is a specification.

This inventionrelates to sewage discharge systems.

The object of the invention is to provide means which are simple and efficient for automatically discharging sewage into the sewers or the like.

Other objects of the invention .Will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawings, and finally pointed out in the appended claims.

Referring to the accompanying drawings, and to the various views and reference signs appearing thereon,-l?igure l is a View .in side elevation of a valve mechanism embodying the'principles of my invention, looking at the pressure exhaust side of the valve casing. Fig. 2 is a similar view looking at the pressure receiving, side of the casing. Fig. 3 is a top plan view of the construction shown in 1. Fig. i is a view in horizontal section on the line i, i, Fig. 1, looking in the direction of the arrows. Fig. 5 is a section on the line 5, 5, Figs. 1 and 3, loci; ing in the direction of the arrows. Fig. 6 is a section on the line 6, 6, Fig. 3, looking in the directionoii the arrows. Fig. 7 is a View partly in side elevation and partly in vertical section showing the application of the valve mechanism to a sewage system.

The same part is designated by the same reference Wherever it occurs throughout the several views.

The problem of discharging the sewage from buildings, or other places, into the sewers uas become a serious one, especially'in the-construction of large cities and apartnient buildings, hotels, and other places where large numbers of people are accommodated. Tn niost citiesthe sanitary requirements regarding the rroper discharge of the sewage are rigid it: necessary in or .rler to preserve the public realth. The'solugrl' at space which not always available, and requiring constant care and attention. Moreover, the apparatus heretofore employed has not PIOYOJR altogether satisfactory in the operation thereof, and, tr

quently, has been found ineiiicient and nn.

reliable.

It is :no special purposes of inans which are simple, and which i no sueciel care or net i .o f .oinatic operation thereof, for insuring the pro )er and regularly recurring discharge of the sewage into the street mains sea In carrying outer employ a tank or c1 sewage from the ouildii. ing collected, and from which such is periodically and automatically disc into the sewers. Tn eilecting' the discharge of the lJOIliZQDlTS of the tank or into the sewers, I propose to er "*y pneumatic or other pressure, a rain controlling the pressure inediui'n cistern. said valve in lg n statically controlled by the accumulations in the tank or c My invention 1 be pract out in a wide variety of d While therefore, I have shown. and will now describe. one construction and arrangement for 2 nuplishing the desired objects, my

OCCllPlQS ically carried i invvntmn as defined in the claims, is not to into the street mains or sewers, or elsewhere,

as may be desireclythrough the discharge pipe 12. The'deliv'ery and discharge pipes 11, 12, are provided with suitable check ment of details now' to be valves 13, 1 1-, by which the one of said pipes is closed While the other is performing its function. Reference sign 15, is a pressure tank or reservoir, or other source, from ment by the guide rod or stem 2() Near its upper and lower limits of rising and falling movements, the float engagesstops 21, and 22, one or both of which may be adjustable, the movements of which stops when engaged by thefloat effecting the desired automatic operation of the valve mechanism contained in the casing 17. A simple arrangement for accomplishing the desired object is shown wherein the guide rod 20 is arranged to extend through the top of the tank 10,'and is itself made longitudinally movable, and carries the stops 21, 22, the extending end of the rod 20, effecting the desired operation of the valve mechanism, through suitable connection therewith, as will he more fully hereinafter explained. The valve casing 17, has connected therewith the pressure supply pipe 16, from the reservoir 15, the pipe 18, delivering from such easing into the tank 10, and an exhaust. pipe 28, and, will be explained hereinafter, the valve mechanism is so constructed that when the pressure supply pipes 16, and 18 are opened to permit the pressure medium to be delivered into the tank, the exhaust pipe 23, is closed, and when the pressure supply pipe 16 is closed, or cut. off, the tank is opened to the exhaust pipe 28, through the pipe 18, and the valve casing.

in the operation of the apparatus the sewfrom the building empties through the pipe 11 do the tank thereby gradually tiling such tank, and causing the'tioat- 19, to rise. During this operation the pressure supply cut oil: and the tank opened to exhaust as above described. i l hen the float- "approaches its upper limit of movement it engages the stop 21 apd raises the rod 20, thereby operating the valve mechanisi'n in the valve casing, 17, to shut.- oif the exhaust connection 23, and to open the pressure supply connection to the tank. Thereupon, such pressure acting upon the surface of the contents of the tank causes the check valve 13, to close and the check valve .141, to open and forces all of the contents of the tank into the d scharge pipe 12, and. thence into the sewer or street. main. Meanwhile, and duringsuch disc-ha the float 19 is gradin ally falling", as the 'evcl of the accumulated contents of the tank falls, until finally the If desired, and in order to etticiently apply the pressure medium to the entire surface of the contents. of the tank in discharging the same, the end 24, of the pipe 18, which extends into the tank may be upturned, as shown, whereby the pressure medium on the initial delivery thereof'into the tank is distributed throughout the unfilled area of the tank, and is not forced into the bodyof the contents of the tank.

I will 'now describe the construction and operation of the valve mechanism, and the.

automatic operation thereof.

r The valve casing indicated generally in Fig. 7, by reference sign l7, 1ncludesthe three ports 25, 26 and 27, in each of which there is a valve chamber. The chamber 28 inthe-portion 25, of the casing contains the valves 29 and 30. The valve 30 is in the form of apiston valve, and operates in the portion 31, of chamber. 28, and is subjected to pressure on both sides thereof aswill be more fully explained hereinafter. The pressure supply pipe 16, from the reservoir or other source 15 is connected to the portion 25, of the casing, as at 32, and delivers into the chamber 28, the passage of the pressure medium into the'chamber 28, being controlled by the valve29. The pipe 18, which delivers into the tank 10, communicates with the chamber 28, through. connection-33, at a point between the valves 29 and 30.' The valves 29 and 30, are connected together by link 34, or otherwise, to move in unison, and saidvalves are arranged to seat in opposite directions, so that. when valve 29 is unseated toadmit pressure to chamber 28, and thence to the tank, the valve 30,'is seated, and when the valve 29 is seated to cut off thesupply of pressure to the valve casing from the sourceof' supply, the valve 30 is unseated to permit the exhaust of pressure from the tank 10, as will presently appear more fully. The casing may be provided with an opening in the side thereof,

which is normally closed by removable, plug 35, to afford means of access to cham;

ber 28, for inspection or repair. The chamber of the portion 27 of the casing receives the pilot or control'valves 36, 37. These valves are carried by a rod 38, which extends longitudinally through said chamber, and has one projectiup:e 'igl' recei 1 within a removable cap 89, and carries i 11stable stop nuts 40. The cap 39 is provided with an air vent 4:1 to prevent the accumulation est/gee of air therein to interfere with the proper operation of the device. The other pro ecting end of rod 38, is threaded into a boss on a coupling casing 42. Into a chamber of this casing extends freely the end of the float guide rod 20 said rod being provided with a nut or head 43, within said chamber, thereby allowing some relative movement of the rod 20 and the pilotva lve rod 38. which -may be adjusted. The chamber in which the pilot valve rod 88 works is in communicaticn'by means of ducts or passagesAA, 45, the former opening from the chamber 28, outside-or" the valve 29, and the latter opening into the chamber 31.in which the piston valve 30 operates. Also communicating with the chamber in which the pilot valve operates is a duct-or passage 46, leading from the chamber 4. 5, of the portion 26, of the casing, in which chamber a valve 48'operates. The

.duct or passage 47, is controlled by the valve 37, on the valve rod 38. The duct or passage 48, terminates in the chamber of the valve rod 38, at a point intermediate the passages 44, 45. its valves 36, 37, operates in a stationary sleeve 58,0!1 the inner wall of which is in longitudinal groove or channel 51, so arranged that when the duct 44 is uncovered by the valves 36, a free passage for the pressure medium is provided from the supply connection 32, to chamber 28, through duct 44, through groove 51,:ind duct 45, into the'cylinder chamber 31, While a; the same time this groove 51 is cut oil" from the exhaust duct 46. When, however, the valve '36, closes duct e14, theexhaust duct is opened. The chamber 17, in the portion 26, of

the

valve'casing delivers through outletconnec t-ion 52, to exhaust pipe 23. The valve 48,

which controls the exhaust pipe connection is so connected with the valve 29, that when the one valve seated the other is unseated. This is accomplished by means of a rod 53, pivotally mounted intermediate its ends in the casing and having connection at its respective ends to the valves 48, and 29, or.

to lugs or stems carried by said valves, whereby when one valve is seated said lever is rocked in direction to unseat the other. This being the construction shown and which embodies the principles of my invention. as broadly definedin the claims, the operation of the va ve mechanism will noW' be pointed out. t

Suppose the supply of pressure medium cut oil, and the part-s are in the positions pied thereby during the time the tank is sewage preparatory i- "the sewer. In this is closed upon its in ted, the valve uio va c rod 38, is on, the float 19, is r, filled. Now'when b ud "l0, is being filled wit to being discharg d cenditiou the The valve rod 38, with,

is rained to uncover the mouth of duct 44 thereby allowing the pressure medium to enter. Thereupon pressure is admitted through duct 44, the chamber of the pilot valves, channel 51, and duct 45, into chambe1131, and, acting on the piston valve 30, which is of larger area than that of valve .29, which is also exposed to the source of pressure, moves said valve into its closed position, as seen in Fig. 5, the valve 29, at the same time, being raised from its seat. The pressure medium is thereupon admitted froms' the supply reservoir 15, or other source, through pipe 16, connection 32, the passage controlled by valve 29, chamber 28,

connection 33, and pipe 18, into the tank 10, y

stem 38, is retained in its raised position by the rcssure exerted upon ,the under surfaces 0- the valves 36, 37, which thus serve as iston valves. In this manner I avoid entirely the use of springs or counter- Weights for retaining the valve rod 38 in its raised position. When finally, the contents oi tank 10, are sufficiently discharged the float 19 engages stop 22 and causes the valve rod 38, to be again returned to its initial position to cause valve 37, to uncover duct 44. This opens the chamber 31, to exhaust and instantly the pressure acting on valves 29, and 30, causes valve 29 to be seated and valve 30 to be unseatcd, the same movement of said valves causing valve $8 to be unseated. The result is that not only is the supply of pressure medium cut off but the tank 10, is opened to exhaust through pipe 18, connection 38, chamber'28, chamber 31, duct 45, duct 46, chamber 47, and exhaust pipe 23. Thus the refilling of the tank 10 with the sewage or other contents from pipe 11., is not op oscd by any back pressure of confined air in the tank.

From the foregoing description itwill be readily seen that I provide an exceedingly simple, eflicient and inexpensive apparatus for removing and disposing of the sewage from buildings or for other uses and pu Having now set poses, which apparatus occupies but small space, and which is wholly automatic in action requiring no care or attention when once set in operation except'to maintain the desired degree of pressure in the reservoir.

claim as new'and useful and of my own invention and desire to secure by Letters Patent is:

1. In a sewage discharge system, a tank having supply and discharge connections,

in combination with a pressure reservoir, and

means for controlling the supply and exhaust of pressure to and from said tank, including a casing having a chamber, a pipe connection from the reservoir delivering to the chamber a i e connection deliverin D from said chamber to the tank, and a pipe connection delivering from said chamber to exhaust, a valve seat formed in said chamber, a valve mounted to move towardand,

from said seat to control the supply of pressure to said chamber, a valve and valve seat to control the exhaust, connections between said valves to secure coincident operation thereof, apisten of larger area than the pressure controlling valveand connected to said valve to operate the same, a cylinder in which the piston is mounted, a passage formed in the casing and delivering from the pressure connection to said cylinder, an

1 exhaust duct delivering from the cylinder,

pilot valves mounted in the casing for controlling said passage and duct, a rod connected to said pilot valves, and a float ar-- ranged in the tank to be operated by changes in the level oi? the contents thereof to operate said rod.

2. The combination with atank and'pres sure supply reservoir, and connections between them including a casing having a chamlmr, a connection delivering from the reservoir-to said, chamber, a connection. communicating respectively with the tank and chamber, and an exhaust connection to said chamber, a valve seat in the casing, a valve exposed to the supply pressure cooperating with said seat, a piston mounted 1nthecas ingot larger area thansaid valve and connected thereto, an auxiliary chamber iormed in the casing, a sleeve mounted therein, passages formed in the casing and opening from the pressure supply to the interior of the sleeve, and from the interior of the sleeve to the piston, and to exhaust respectively, a duct formed in the sleeve around the exhaust passage, pilot valves mounted in the sleeve nected to said pilot valves, and extending into the tank, and a float in the tan for operating said rod,

3. A valve mechanism for sewage discharge systems comprising a casing having a main chamber, a piston chamber and an auxiliary chamber formed therein, valve seats formed in the main and piston chambers, a main valve and a piston having a valve face and respectively cooperating with said seats,

said valves being connected together, and the piston area being greater than the main valve area, pressure supply discharge and exhaust connections, to said main chamber, a passage delivering from the pressure side of the main valve to the auxiliary chamber, a passage delivering from the auxiliary chamber to the piston chamber, and a passage delivering from the auxiliary chamber to exhaust, pilot valves mounted in the auxiliary chamber to control said passages and means for automatically operating sai pilot valves.

i. A valve mechanism for sewage discharge systems'comprisiug a casing having main, piston and auxiliary chambers forme therein, supply, discharge and exhaust connections for said main chamber, disk valves for controlling said supply and exhaus connections, said valves being connected for coincident movement, seats with which valves cooperate, a piston in the piston chamber having connection with the supply valve, passages formed in the casingand re: spectively connecting the auxiliary chamber with the pressure supply, the exhaust and the piston chamber, pilot valves in the auxiliary chamber to control said passages, a duct formed in the casing and leading from the pressure supply passage to the piston chamber passage, a rod connected to said pilot valves to operate the same and means to automatically operating said rod In a sewage discharge system the combination with a tank having supply and disch: e connections, of a pressure reservoir, a casing having main, piston and auxiliary chambers formed therein, a supply connection from the reservoir to the main chamber,

a supply and discharge conpect-ion from the tanlclo the main chamber, and an exhaust connection with the main. chamber, a valve seat formed in the main chamber between the pressure supply connection and the tank and exhaust connections, a valve cooperating with said seat, a piston in the piston chamber and connected to the valve, a valve for controlling the exhaustv connection and connected for coincident movement with the main valve,passages formed in the casm and communicating between the auxiliary *0 amher and the pressure supply, the exhaust and the piston chamber, a duct formed in the auxiliary chamber around the exhaust pas-' sage and communicating between the sup- 1 my hand in the presence of the subscribing ply and piston chamber passages, pilot i witnesses, on this 30th day of August A. D.,

valves for controlling said passages, a rod 1908.

connected to said pilot valves and extending THOMAS FERGUSON. into the tank, and a float arranged in the Witnesses:

- tank to operate said rod. NEWTON Osom,

In testimony whereof I have hereunto set J. KLEIN. 

